package 作业1;

import java.util.Scanner;
public class Code2 {
    public static int Prime(int x) {
        int j;
        if(x==2)
            return 1;
        j=2;
        while(j<=Math.sqrt(x)&&(x%j!=0))
            j++;
        if(x%j==0)
            return 0;
        else
            return 1;
    }
     public static void main(String [] args) {
        int n;
        Scanner cin=new Scanner(System.in);
        System.out.println("请输入一个大于2的偶数");
        n=cin.nextInt();
        for(int i =2;i < n;i++)
        {
             int j=n-i;
             if(Prime(i)!=0 && Prime(j)!=0){
                System.out.println(n+"="+i+"+"+j);
                break;
             }
        }
     }
}
